paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-04-15 10:40:13 +02:00
Code Issues Packages Projects Releases Wiki Activity

* do not set the addr taken flag for nodes to passed to const/var/out parameters, if

Browse Source 
the code of the callee is known and within the callee no address of the parameters
    is taken
This commit is contained in:
florian 2024-10-19 15:15:00 +02:00
parent 37b7835b12
commit b2892adebf
1 changed files with 27 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
compiler/ncal.pas
View File

@ -1385,10 +1385,16 @@ implementation
begin
{ compilerprocs never capture the address of their
parameters }
if not(po_compilerproc in aktcallnode.procdefinition.procoptions) then
make_not_regable(left,[ra_addr_regable,ra_addr_taken])
else
if (po_compilerproc in aktcallnode.procdefinition.procoptions) or
{ if we handled already the proc. body and it is not inlined,
we can propagate the information if the address of a parameter is taken or not }
((aktcallnode.procdefinition.typ=procdef) and
not(po_inline in tprocdef(aktcallnode.procdefinition).procoptions) and
(tprocdef(aktcallnode.procdefinition).is_implemented) and
not(parasym.addr_taken)) then
make_not_regable(left,[ra_addr_regable])
else
make_not_regable(left,[ra_addr_regable,ra_addr_taken]);
end
else
case parasym.varspez of
@ -1400,10 +1406,16 @@ implementation
set_varstate(left,vs_readwritten,[]);
{ compilerprocs never capture the address of their
parameters }
if not(po_compilerproc in aktcallnode.procdefinition.procoptions) then
make_not_regable(left,[ra_addr_regable,ra_addr_taken])
else
if (po_compilerproc in aktcallnode.procdefinition.procoptions) or
{ if we handled already the proc. body and it is not inlined,
we can propagate the information if the address of a parameter is taken or not }
((aktcallnode.procdefinition.typ=procdef) and
not(po_inline in tprocdef(aktcallnode.procdefinition).procoptions) and
(tprocdef(aktcallnode.procdefinition).is_implemented) and
not(parasym.addr_taken)) then
make_not_regable(left,[ra_addr_regable])
else
make_not_regable(left,[ra_addr_regable,ra_addr_taken]);
end;
vs_var,
vs_constref:
@ -1411,10 +1423,16 @@ implementation
set_varstate(left,vs_readwritten,[vsf_must_be_valid,vsf_use_hints]);
{ compilerprocs never capture the address of their
parameters }
if not(po_compilerproc in aktcallnode.procdefinition.procoptions) then
make_not_regable(left,[ra_addr_regable,ra_addr_taken])
else
if (po_compilerproc in aktcallnode.procdefinition.procoptions) or
{ if we handled already the proc. body and it is not inlined,
we can propagate the information if the address of a parameter is taken or not }
((aktcallnode.procdefinition.typ=procdef) and
not(po_inline in tprocdef(aktcallnode.procdefinition).procoptions) and
(tprocdef(aktcallnode.procdefinition).is_implemented) and
not(parasym.addr_taken)) then
make_not_regable(left,[ra_addr_regable])
else
make_not_regable(left,[ra_addr_regable,ra_addr_taken]);
end;
else
set_varstate(left,vs_read,[vsf_must_be_valid]);